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From: Craig Ringer <craig@postnewspapers.com.au>
To: Greg Smith <greg@2ndquadrant.com>
Cc: felix <crucialfelix@gmail.com>
Cc: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
Subject: Re: Really really slow select count(*)
Date: Tue, 08 Feb 2011 07:55:56 +0800
Message-ID: <4D50868C.1020209@postnewspapers.com.au> (raw)
In-Reply-To: <4D504275.5040103@2ndquadrant.com>
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On 02/08/2011 03:05 AM, Greg Smith wrote:

> Accordingly I would expect any serious
> attempt to add some auto-reduction behavior to be beset with argument,
> and I'd never consider writing such a thing as a result. Too many
> non-controversial things I could work on instead.

Yep. I expressed my own doubts in the post I suggested that in.

If Pg did auto-correct down, it'd be necessary to scream about it 
angrily and continuously, not just once during startup. Given that it's 
clear many people never even look at the logs ("what logs? where are 
they?") I think Pg would also have to send notices to the client. 
Problem is, many clients don't process notices/warnings, so particularly 
slack admins won't see that either.

I'm not particularly excited about the idea.

--
Craig Ringer



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